Window construction



Aug. 18, 1936. A. H. TASHJIAN ET AL.

WINDOW CONSTRUCTION Original Filed Sept. 24, 1954 mil W101 Patented Aug. 18, 1936 PATENT OFFICE 2,051,754 WINDOW CONSTRUCTION Armen H. Tashjianand Dean Holden, Cleveland, Ohio, assignors, by mesne assignments, to The Rivet-Grip Steel 00., Cleveland, Ohio Original application September 24, 1934, Serial Divided and this application February 7, 1935, Serial No. 5,473

11 Claims.

This is a division ofan application for patent for an electro-pneumatically operating window filed by Armen H. Tashjian and Dean H. Holden, September 24, 1934, Serial No. 745,338, and as 5 such specifically relates to a window construction the objects of which are as follows:-- First, to provide a. sash slide and sash weather strip combined in one element, said element having a double contact surface for that-part of the sash with which the. element immediately cooperates, the sash itself preferably being made of metal, but not necessarily so.

Second, to include a pair of resilient cylindrical laterals in said element to provide double, flexible, 151 arcuate surfaces for all rails of both sashes excepting the meeting rails, said laterals either permanently occupying corresponding circular grooves in the vertical-side rails, the surfaces of which grooves have slidable contact with the re- 20 spective laterals, or being projectible into the corresponding grooves in the bottom and toprails of the lower and top sashes when these are in the fully closed positions.

Third, to provide a combined sash slide and 25 weather strip element which is intended tobe se- Lcuredboth at thesides and across the window frame to serve the double purpose of permanently maintaining slidable, *wind and weather-proof contact with each sash, for example the lower 30 sash, and to provide a resilient, weather-proof -a'butment' for the bottom rail of said sash when the latter is closed.

F'0urth, to provide biased membranes in the space between the'meeting rails, said membranes 35 "being contactible with each other when the sashes are closed. 7 I

Fifth, to provide a window sash the four rails f .whichare of identical internalform, partly to facilitate manufacture and partly to serve the A0 purposes of the copending parent application as brought out below.

In thedrawing:- Figure 1 is an elevation of a window constructed in accordance with the invention, as 45 viewed "from the inside of'the room.

Figure 2 is a cross section taken on the line2-2 3 T55 -'4-4'of Figure l-showing how thesash slide and weather strip element serves as a resilient abutment for the bottomrail of thelower ash.

Figure 5 is a cross section taken on the line '5--5 of Figure 1, illustrating the slidable double contact of one of the vertical side rails of'the 5 top sash withthecombined sash slide and weather strip element.

Figure 6 is an end view'of the lower sash as seen on the line 6- 6 of Figure 1, particularly illustrating the circular grooves. 10

In carrying out the invention, provision is made of a window frame I (Fig. l)- of simple, solid cross section, welded at the corners to form an inexpensive rectangular frame. On the inner vertical sides and transversehead and sill .surfaces of the frame l, grooves 33 are provided toreceive-the sash slides and weather strips. The latter are combined in one element, and the combined sash slide and weather strip elements serve the respective purposes of permanently maintaining slidable contact with-the sashes andperiodically providing resilient abutments for them when fullyclosed, this depending upon thepositioning of theelements on the internal sides or transverse faces of the-window frame. Be- 5 cause of the positioning of the sashes the vertical grooves are provided-in pairs'on-each side and are offset so as to line up with the sashes, the diagonally opposite remote ends of these groovesbeing connected .by the head and sill b grooves.

. The: lower and top-sashes l3, M are preferably constructed of extruded metal of a cross section :-well represented in'Figures 2, 3, 4 and'5, Figure 3 illustrating the meeting rails 19, 20 of the two sashes, Figures 2 and-4 the-respective top and window operating means with which theparent application -is concerned. There are similar bores is in the corresponding rails I9, 20' (Fig. 3), but these, and immediately associated internal structure, do not serve any purpose other than to save metal and to makethe sashes as 0 lightasposs'ible, the; presence of the bores l8 chiefly being incidental to the formation of the horizontal rails by the same diefrom which the vertical rails are formed.

The idle bores l8- (Fig. Blaieclosed by tightly V fitting metal closure members 28. These members are inserted in certain circular grooves 25 which, in the instance of the vertical side rails I6 (Fig. 5) contain the sash slide and weather strip elements as presently brought out. The bores I5 of the bottom and top rails 2I, 22 (Figs. 4 and 2) are left open as shown or, if desired, may be closed with a strip of metal slid into confronting grooves 24, which grooves, especially the grooves 24 in the vertical side rails I5, are also part of the internal structure serving the purpose, in the instance of the side rails, of containing a certain lock strip (not shown) with a which the parent application is concerned. The

confronting grooves 24 open into an outlet 35 from the respective bore I5.

Reverting to the circular grooves 25, it will be seen that these occur in all of the rails of each sash, excepting the meeting rails I9, 20. Said grooves make a snug fit over the cylindrical lat- .is periodic and by abutment when the sashes are closed.

The strips 30 are mounted on a metal backing 3|, constituting a rigid member, the back ribs 34 of the latter being made to fit into the foregoing grooves 33 of the frame I. The strips 30 and backing 3| are secured to the frame I by screws 32 of which one isrshown in Figure 2. The cylindrical laterals 29 of the strips 30 fit into the corresponding circular grooves 25 of the vertical side and transverse sash rails, providing a very effective barrier against air infiltration between the sashes and frame.

Parallel vertical beads 35 (Fig. of the backing 3i loosely fit the cylindrical laterals 29 of the respective strip 30. The laterals 29 are resilient, and the space therebetween and the beads 35 provide for any necessary relative movement when the sash is slid up and down as well as when the sash is brought into abutment therewith in its closed position. The cylindrical laterals 29 of the weather strip 30 together with the beads 35 of the backing 3| at two sides of the frame act as resilient and conformable tracks or slides for the sash slide rail grooves 25,

the resiliency of the laterals insuring a sufficiently snug friction fit in the circular grooves to prevent the passage of air.

Attention is next directed to the weather strip of the meeting rails I9, (Fig. 3). Extending full width of the sashes at the meeting rails are so that each has, a substantial U-shape.

metallic membranes I39, I49. The longitudinal sides of these membranes are bent at I4I, I42 These bent sides or edges are set in grooves I43, I44 arranged-in confronting or parallel positions along the adjacent surfaces of the meeting rails.

Immediately to the inside of the bends I4I which jut out farthest from the respective meeting rail toward the other meeting rail there is a lip I45. This assists in the support of the respective bend MI, and inasmuch as it falls short of the place where the bend turns into the membrane proper there occurs a space which allows for any necessary flexing of the membrane toward the meeting rail. The membranes are flexible as just indicated.

They stand on a bias to the meeting rails, and when the sashes are closed, as shown in Figure 3, the membranes come together and make a mutually conforming contact their entire length for a very efiective weather-stripping at the meeting rails of the two sashes. The remote parts of the meeting rails have projections I46 which come as close to the opposite meeting rail as possible. These projections substantially enclose the metallic membranes when the sashes are closed, and so add to the function of the membranes themselves in excluding drafts.

The operation is readily understood. From what has been stated, it is understood that common use of a commonly designated weather strip element is made on each of the internal four faces of the window frame I. This element is of identical cross section in all instances as can be seen by comparing Figures 2, 4 and 5.

The function of the element changes somewhat as between its establishment upon the vertical sides of the frame and. upon the transverse head and sill portions thereof. In the first instance the sashes maintain. a permanent slidable contactwith the cylindrical laterals 29, the engagement of the laterals with the grooves being permanent. In the second instance the engagement of the cylindrical laterals with the corresponding grooves occurs only when the sashes are fully closed, and then the contact is by abutment. But in both instances the resiliency of the resilient laterals, notably of a double contact nature for each sash, has the important function of pressing against the surfaces of the cylindrical grooves to make a weather tight contact.

As to the metallic membranes I39, I45 in Figure 3, these also have a yieldable, conformable contact when the sashes are closed, the adjacent structure of the meeting rails substantially encompasses the weather stripping.

. We claim:-

1. A window comprising a frame of solid cross section, combined slide-track and weather stripping of identical form bounding the sash opening of the frame, said combined slide-track and weather stripping including resilient cylindrical laterals, and a pair of sashes situated in said opening and including circular grooves along the side, top and bottom rails, the circular grooves of the side rails permanently containing the cylindrical laterals of the combined slidetrack and weather stripping along side portions of the frame for slidably guiding the sashes, the cylindrical laterals of the remaining stripping yieldably entering the circular grooves of the top and bottom rails upon closing the respective sashes.

2. A window comprising a frame of solid cross section defining a sash opening, a pair of peripherally grooved sashes situated and slidably operable in said opening, and combined slidetrack and weather stripping of identical cross sectional form bounding the sash opening, said form being such that the weather stripping along the vertical side portions of the frame slidably fits in the side grooves of the sash side rails to act as slide-tracking, and the remaining top and bottom slide-tracking acts as weather stripping which compressibly fits in the grooves of the top and bottom rails of the respective sashes when closed.

I 3. A double hung window comprising a frame consisting of sides, head and sill portionswhich define a sash opening, said portions having vertical and transverse grooves, weather stripping elements and means by which they are attached to the frame where the grooves occur, each element consisting of a weather strip and a backing for the weather strip, said backing having a rib fitting in the respective groove, said weather strip including at least one cylindrical lateral, and top and bottom sashes situated in said opening, the vertical side rails of both sashes and the top and bottom rails of the respective sashes having conforming grooves respectively in permanent slidable contact with the cylindrical laterals of the side stripping and adapted to abut the cylindrical laterals of the head and sill stripping when the sashes are closed.

4. In a window construction, a frame, a weather strip which has parallel cylindrical resilient laterals, a sash which includes a rail having a cylindrical groove into which the cylindrical lateral fits, and a backing for the weather strip and means by which the backing is secured to the frame, said backing having beads situated inside of the cylindrical laterals and being spaced therefrom so that the resilient laterals will have some play.

5. A pair of sashes having meeting rails of identical cross sectional form, each with grooves opening into the space between the rails, and a pair of contactable membranes in corresponding bias positions in the space between the rails, each having bent ends fitted into the grooves.

6. A pair of sashes having meeting rails, said rails having projections on their remote parts directed into the space between the rails and having pairs of grooves of which there is one adjacent to each projection, and a pair of membranes in a biased position in said space, the membranes having bent ends fitted in the grooves, and the projections extending over the bends to substantially enclose the membranes.

'7. In a window sash, said sash including a hollow rail, for example a side rail, which has an outlet as long as the side rail and pairs of cross sectionally arcuate confronting grooves on the sides of the outlet, said grooves being coextensive 5 with the outlet and adapted to fit upon the cylindrical laterals of a Weatherstripping.

8. A sash, and a sash slide along which the sash is movable, said slide including resilient cylindrical laterals and the sash having circular 10 grooves flexibly containing said laterals at least in part.

9. A sash, and a sash slide along which the sash is movable, said slide comprising a backing with beads and a Weatherstrip mounted on the 15 backing and provided with resilient laterals having flexing play upon the beads, said sash having grooves containing the laterals at least in part.

10. A window comprising a frame, combined slide-track and weather stripping of identical form bounding the sash opening of the frame, a pair of sashes situated in said opening and being marginally grooved along the side, top and bot-' tom rails, said combined slide-track and weather stripping including resilient laterals permanently but flexibly occupying the grooves of the side rails for sliding operation, and including resilient laterals abuttably and resiliently occupying the grooves of the top and bottom rails when the sashes are closed. 30

11. A window comprising a frame, combined slide-track and weather stripping of identical form along the sides and across at least one end of the sash opening of the frame, and a sash situated in said opening and being marginally grooved along the side and at least one cross rail, said form of the stripping and grooves being of matching cross section for both sliding operation and abuttable closingof the sash.

ARMEN H. TASHJIAN. DEAN H. HOLDEN. 

